lim (kl9356) – Homework 6 – Weathers – (17104)
1
This
printout
should
have
10
questions.
Multiplechoice questions may continue on
the next column or page – find all choices
before answering.
001
10.0 points
Joe pushes down the length of the handle
of a(n) 12
.
2 kg lawn spreader.
The handle
makes an angle of 42
.
1
◦
with the horizontal.
Joe wishes to accelerate the spreader from
rest to 1
.
32 m
/
s in 1
.
3 s.
What force must Joe apply to the handle?
Answer in units of N.
002
10.0 points
A 55 kg boy and a 37 kg girl use an elastic rope
while engaged in a tugofwar on a frictionless
icy surface.
If the acceleration of the girl toward the
boy is 2
.
8 m
/
s
2
, determine the magnitude of
the acceleration of the boy toward the girl.
Answer in units of m
/
s
2
.
003
(part 1 of 2) 10.0 points
An object in equilibrium has three forces ex
erted on it. A(n) 38 N force acts at 73
.
6
◦
, and
a(n) 49 N force acts at 38
.
9
◦
.
What is the direction of the third force?
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 Fall '08
 Weathers
 Magnetism, Force, Friction, Mass, Work, General Relativity

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